:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  background: #f7f8fc;
  color: #202538;
}

* { box-sizing: border-box; }

body {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 80px;
  line-height: 1.85;
}

h1 {
  margin-bottom: 1.5rem;
  padding-bottom: 0.6rem;
  border-bottom: 3px solid #6576d8;
  font-size: 1.65rem;
}

h2 {
  margin-top: 2em;
  font-size: 1.12rem;
}

a { color: #4255b5; }

ul { padding-left: 1.4em; }

.card, table {
  background: #fff;
  box-shadow: 0 1px 5px rgb(32 37 56 / 10%);
}

.card {
  margin: 16px 0;
  padding: 20px 24px;
  border-radius: 12px;
}

.card h2:first-child { margin-top: 0; }

table {
  width: 100%;
  margin: 12px 0;
  border-collapse: collapse;
}

th, td {
  padding: 9px 12px;
  border: 1px solid #dfe2ec;
  text-align: left;
  font-size: 0.92rem;
}

th { background: #eef0f8; }

.links { margin-top: 40px; }

footer {
  margin-top: 48px;
  color: #697085;
  font-size: 0.8rem;
}

@media (max-width: 520px) {
  table, tbody, tr, th, td { display: block; }
  th { border-bottom: 0; }
  td { margin-bottom: 10px; }
}